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Secure identification of roaming rights prior to authentication/association

a roaming rights and authentication/association technology, applied in the field of secure identification of roaming rights prior to authentication/association, can solve the problems of extended signaling and conventional art thus fails to provide a mechanism for ieee 802.11 mobility and roaming

Inactive Publication Date: 2007-08-09
NOKIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention provides a mobile station and access point that can communicate with each other using a roaming ID. The mobile station can transmit the roaming ID to the access point, and the access point can receive a list of service set identifiers (SSIDs) from the mobile station. The access point can then transmit the list of SSIDs to other devices in the network. This allows for seamless communication between different devices in the network. The technical effects of this invention include improved network communication and simplified network setup."

Problems solved by technology

When roaming, the list of the mobile station preferred SSIDs can be rather long, which can result in extensive signaling to obtain a valid SSID.
The conventional art thus fails to provide a mechanism for IEEE 802.11 mobility and roaming.

Method used

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  • Secure identification of roaming rights prior to authentication/association
  • Secure identification of roaming rights prior to authentication/association
  • Secure identification of roaming rights prior to authentication/association

Examples

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Embodiment Construction

[0022] Certain embodiments of the present invention provide a mechanism to enable a WLAN station (which may also be referred to as a mobile station) to query an access point (AP) to verify whether a roaming agreement is in place between the mobile station service provider and the provider owning the access point. The mobile station may send a Probe Request to the access point providing a Roaming Identifier (Roaming ID) assigned by the mobile station service provider (SP). The access point may use the Roaming ID to verify whether roaming is supported for this mobile station. If roaming is enabled, the access point may reply with a probe response providing the mobile station with the list of SSIDs to be used to connect to the network.

[0023] Alternatively, the mobile station may send a Probe Request to the access point providing a string (for example, “3gpp”) to be used as a wild card in probing for supported SSIDs. The access point uses the string to verify whether any SSID matching ...

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Abstract

A mechanism to enable secure identification of roaming rights prior to authentication / association is provided. The mechanism may include using a Roaming ID, and may also include the use of wild cards and group IDs to reduce the length of transmissions. The mechanism may further employ public key infrastructure and puzzles to further enhance security and reduce the risk of denial of service attacks.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is related to and claims the priority of Provisional Patent Application Ser. No. 60 / 757,484, which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates, for example, to a mechanism for IEEE 802.11 to enable secure identification of roaming rights prior to authentication / association. [0004] 2. Description of the Related Art [0005] When wireless local area network (WLAN) access points are shared by multiple service providers (e.g. in airport hotspots the airport can own the access point, but service may be provided by other operators such as T-Mobile, Cingular, and the like), the technique called “virtual AP” is used to allow sharing of the access point. From the mobile station point of view it is as if there were several different access points. Multiple service set identifiers (SSIDs) are used by the same access point...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04Q7/20H04W12/04H04W12/10H04W12/12H04W48/14H04W48/16
CPCH04L63/12H04L63/1458H04W12/04H04W48/16H04W12/12H04W48/14H04W12/10H04W12/122H04W12/126
Inventor FACCIN, STEFANOEDNEY, JONATHAN P.
Owner NOKIA CORP
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